9bed120

Changes since 1ce9575:

• 9bed120 Add about app in app menu.
• 8ae4773 Add avatar to user menu and remove user profile page.
• 7bd502b Update preloader after reordering queue tracks.
• 5cbac5d Prevent MediaSession flicker on track transition.
• 7180b15 Remove sort button from playlist track list.
• d0bc355 Added sortable list functionality for queue list.